Home / 198,608.24-274,089.38-122,131.59

Finding the Fourth Proportional to 198,608.24, 274,089.38 and 122,131.59

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Solution

The fourth proportional to 198,608.24, 274,089.38 and 122,131.59 is: 168,547.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,608.24 : 274,089.38 = 122,131.59 : x
  2. Step 2: Convert to fraction form
    198,608.24/274,089.38 = 122,131.59/x
  3. Step 3: Cross multiply
    198,608.24x = 274,089.38 × 122,131.59
  4. Step 4: Simplify right side
    198,608.24x = 33,474,971,170.86
  5. Step 5: Solve for x
    x = 33,474,971,170.86/198,608.24
  6. Step 6: Final answer
    x = 168,547.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.